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HP 15c Calculator

HP 15c Calculator

Official emulator of HP 15c

168 ratings
294 reviews
🔧 Utilities
💼 Business
$14.99

Details

  • Released
  • Updated
  • March 2, 2012
  • February 3, 2026

Developer

MORAVIA Consulting, spol. s r.o.
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HP 15c Calculator screenshot #1 for iPhone
HP 15c Calculator screenshot #2 for iPhone
HP 15c Calculator screenshot #3 for iPhone
HP 15c Calculator screenshot #4 for iPhone
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About

Experience the official emulator of the legendary HP 15c scientific calculator. This app offers a redesigned interface and modern look while preserving the precision and reliability of the original. It features RPN input, matrix calculations, complex functions, and numerical integration for professionals and students.

✓Official HP 15c emulator
✓RPN (Reverse Polish Notation)
✓Matrix calculations
✓Complex functions
✓Numerical integration
✓Programmable (448 lines)
Show original description

What users say

Summarized from real user reviews of HP 15c Calculator. Based on 168 reviews and a 4.8/5 average, it highlights the 6 positives and 4 negatives reviewers mention most about this Utilities app.

Positive things

  • 🚀Excellent emulation of original HP 15C
  • 👍Faithful reproduction of classic calculator
  • 👍Includes original manual
  • 👍Works just like the real thing
  • 👍Vertical layout with key features
  • 👍Great update with new features

Negative things

  • 🐛Display issues in portrait mode
  • 🐛Bugs with programming and trig functions
  • 🔇Loud button click sound
  • 💰Expensive for an app
See all reviews

What's New in HP 15c Calculator

3.0.2

February 3, 2026

Stability improvements and small fixes.

User reviews

Most RecentHighest RatedLowest Rated

A Cientifica perfeita

Eu uso essa HP desde da década de 80, eu formei na Politécnica somente com essa tecnologia da época..!
Don Marco SantanaDon Marco Santana

iPhone XS Max iOS 13.5.1

Love thi new portrait format as so much easier to use which doesn’t have the limitation of the old basic calculator. Very pleased.
Regards, Martin Basil
Slip Slidin' AwaSlip Slidin' Awa

Looks neat, works great

This app is not just a retro gimmick. The calculator is very usable. My only complaint: The skin is a bit dark and low contrast for my taste.
kklammerkklammer

Best app ever

HP15c is the calculator that I used when I was in engineering school and this app does and excellent job of emulating that device! I have used many apps over the years and, by far, this one is the best one I’ve ever paid for.
abbxhdjelabbxhdjel

RPN Rules

I love the RPN input system. I have this original calculator and this “app” will always be on my phone and tablet.
Nebraska Man in MarylandNebraska Man in Maryland
See 289 more reviews

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User experience

🐞

Reported Bugs

3 issues

Numbers not aligned in display window

Bug

Display flashing after running programs

Bug

Incompatibility with latest iOS versions

Bug
✨

Requested Features

4 requests

Copy and paste functionality

Feature

Ability to change calculator models

Feature

Option to disable button click sound

Feature

Better support for larger iPhone screens

Feature

FAQ

What is the HP 15c Calculator app?

The HP 15c Calculator app is an official emulator of the legendary HP 15c scientific calculator. It features a redesigned interface and modern look while maintaining the precision and reliability of the original device. The app includes features like RPN input, matrix calculations, complex functions, and numerical integration.

What are the key features of the HP 15c Calculator app?

Key features include being an official emulator of the original HP 15c, identical algorithms and keystrokes, RPN for efficient input, matrix calculations, complex functions, numerical integration, and programmability up to 448 lines. It offers a blend of classic functionality with a modern design.

How much does the HP 15c Calculator app cost?

The provided information indicates that the app is a paid application. There are no mentions of in-app purchases or advertisements, suggesting a one-time purchase model.

Who is the target audience for the HP 15c Calculator app?

This app is ideal for math and engineering students and professionals who require a powerful and reliable scientific calculator. Its advanced features and familiar interface make it suitable for complex calculations and programming tasks.

Can I use the HP 15c Calculator app on my iPhone or iPad?

Yes, the app is designed to be conveniently stored and used on your iPhone or iPad. You can launch the app anytime, anywhere, whether you are in class, at the office, or on the go.